Will a spacecraft capable of propulsion above 1% the speed of light be achieved before 2040?

Will there be a crewed mission to Mars before 2040?

Will human civilization send a space probe to the Alpha Centauri system before 2075?

Will we send a spacecraft/probe or Jose Luis ricon to the proxima centauri/alpha centauri system by 2065?

Will there be a crewed mission to Saturn before 2040?

Will an interstellar mission to Alpha Centauri be launched by 2100?

Will human civilization send a space probe to the Alpha Centauri system before 2100?

Will a manned interstellar mission be launched before January 1, 2060?

Will there be a manned interstellar mission before 2250?

If/when humans send a mission to Alpha Centauri, will the subjective time experienced by the craft be more than 20 years?